jamis/dist/chunks/mpegts.ec5dc534.js

一种支持通过JSON配置方式生成页面的组件库

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L.a("ExpGolomb: _fillCurrentWord() but no bytes available");var t=Math.min(4,i),e=new Uint8Array(4);e.set(this._buffer.subarray(this._buffer_index,this._buffer_index+t)),this._current_word=new DataView(e.buffer).getUint32(0,!1),this._buffer_index+=t,this._current_word_bits_left=8*t},a.prototype.readBits=function(i){if(i>32)throw new L.b("ExpGolomb: readBits() bits exceeded max 32bits!");if(i<=this._current_word_bits_left){var t=this._current_word>>>32-i;return this._current_word<<=i,this._current_word_bits_left-=i,t}var e=this._current_word_bits_left?this._current_word:0;e>>>=32-this._current_word_bits_left;var n=i-this._current_word_bits_left;this._fillCurrentWord();var o=Math.min(n,this._current_word_bits_left),r=this._current_word>>>32-o;return this._current_word<<=o,this._current_word_bits_left-=o,e=e<<o|r},a.prototype.readBool=function(){return this.readBits(1)===1},a.prototype.readByte=function(){return this.readBits(8)},a.prototype._skipLeadingZero=function(){var i;for(i=0;i<this._current_word_bits_left;i++)if(this._current_word&2147483648>>>i)return this._current_word<<=i,this._current_word_bits_left-=i,i;return this._fillCurrentWord(),i+this._skipLeadingZero()},a.prototype.readUEG=function(){var i=this._skipLeadingZero();return this.readBits(i+1)-1},a.prototype.readSEG=function(){var i=this.readUEG();return 1&i?i+1>>>1:-1*(i>>>1)},a}(),N=function(){function a(){}return a._ebsp2rbsp=function(i){for(var t=i,e=t.byteLength,n=new Uint8Array(e),o=0,r=0;r<e;r++)r>=2&&t[r]===3&&t[r-1]===0&&t[r-2]===0||(n[o]=t[r],o++);return new Uint8Array(n.buffer,0,o)},a.parseSPS=function(i){for(var t=i.subarray(1,4),e="avc1.",n=0;n<3;n++){var o=t[n].toString(16);o.length<2&&(o="0"+o),e+=o}var r=a._ebsp2rbsp(i),s=new U(r);s.readByte();var u=s.readByte();s.readByte();var h=s.readByte();s.readUEG();var m=a.getProfileString(u),A=a.getLevelString(h),y=1,R=420,I=8,H=8;if((u===100||u===110||u===122||u===244||u===44||u===83||u===86||u===118||u===128||u===138||u===144)&&((y=s.readUEG())===3&&s.readBits(1),y<=3&&(R=[0,420,422,444][y]),I=s.readUEG()+8,H=s.readUEG()+8,s.readBits(1),s.readBool()))for(var x=y!==3?8:12,ee=0;ee<x;ee++)s.readBool()&&(ee<6?a._skipScalingList(s,16):a._skipScalingList(s,64));s.readUEG();var Z=s.readUEG();if(Z===0)s.readUEG();else if(Z===1){s.readBits(1),s.readSEG(),s.readSEG();var Y=s.readUEG();for(ee=0;ee<Y;ee++)s.readSEG()}var re=s.readUEG();s.readBits(1);var fe=s.readUEG(),$=s.readUEG(),ae=s.readBits(1);ae===0&&s.readBits(1),s.readBits(1);var pe=0,oe=0,le=0,Se=0;s.readBool()&&(pe=s.readUEG(),oe=s.readUEG(),le=s.readUEG(),Se=s.readUEG());var Ae=1,ue=1,ge=0,Re=!0,Le=0,xe=0;if(s.readBool()){if(s.readBool()){var De=s.readByte();De>0&&De<16?(Ae=[1,12,10,16,40,24,20,32,80,18,15,64,160,4,3,2][De-1],ue=[1,11,11,11,33,11,11,11,33,11,11,33,99,3,2,1][De-1]):De===255&&(Ae=s.readByte()<<8|s.readByte(),ue=s.readByte()<<8|s.readByte())}if(s.readBool()&&s.readBool(),s.readBool()&&(s.readBits(4),s.readBool()&&s.readBits(24)),s.readBool()&&(s.readUEG(),s.readUEG()),s.readBool()){var Pe=s.readBits(32),Be=s.readBits(32);Re=s.readBool(),ge=(Le=Be)/(xe=2*Pe)}}var Oe=1;Ae===1&&ue===1||(Oe=Ae/ue);var Ie=0,be=0;y===0?(Ie=1,be=2-ae):(Ie=y===3?1:2,be=(y===1?2:1)*(2-ae));var Ve=16*(fe+1),Fe=16*($+1)*(2-ae);Ve-=(pe+oe)*Ie,Fe-=(le+Se)*be;var Xe=Math.ceil(Ve*Oe);return s.destroy(),s=null,{codec_mimetype:e,profile_idc:u,level_idc:h,profile_string:m,level_string:A,chroma_format_idc:y,bit_depth:I,bit_depth_luma:I,bit_depth_chroma:H,ref_frames:re,chroma_format:R,chroma_format_string:a.getChromaFormatString(R),frame_rate:{fixed:Re,fps:ge,fps_den:xe,fps_num:Le},sar_ratio:{width:Ae,height:ue},codec_size:{width:Ve,height:Fe},present_size:{width:Xe,height:Fe}}},a._skipScalingList=function(i,t){for(var e=8,n=8,o=0;o<t;o++)n!==0&&(n=(e+i.readSEG()+256)%256),e=n===0?e:n},a.getProfileString=function(i){switch(i){case 66:return"Baseline";case 77:return"Main";case 88:return"Extended";case 100:return"High";case 110:return"High10";case 122:return"High422";case 244:return"High444";default:return"Unknown"}},a.getLevelString=function(i){return(i/10).toFixed(1)},a.getChromaFormatString=function(i){switch(i){case 420:return"4:2:0";case 422:return"4:2:2";case 444:return"4:4:4";default:return"Unknown"}},a}(),P=D(6),X=function(){function a(){}return a._ebsp2rbsp=function(i){for(var t=i,e=t.byteLength,n=new Uint8Array(e),o=0,r=0;r<e;r++)r>=2&&t[r]===3&&t[r-1]===0&&t[r-2]===0||(n[o]=t[r],o++);return new Uint8Array(n.buffer,0,o)},a.parseVPS=function(i){var t=a._ebsp2rbsp(i),e=new U(t);return e.readByte(),e.readByte(),e.readBits(4),e.readBits(2),e.readBits(6),{num_temporal_layers:e.readBits(3)+1,temporal_id_nested:e.readBool()}},a.parseSPS=function(i){var t=a._ebsp2rbsp(i),e=new U(t);e.readByte(),e.readByte();for(var n=0,o=0,r=0,s=0,u=(e.readBits(4),e.readBits(3)),h=(e.readBool(),e.readBits(2)),m=e.readBool(),A=e.readBits(5),y=e.readByte(),R=e.readByte(),I=e.readByte(),H=e.readByte(),x=e.readByte(),ee=e.readByte(),Z=e.readByte(),Y=e.readByte(),re=e.readByte(),fe=e.readByte(),$=e.readByte(),ae=[],pe=[],oe=0;oe<u;oe++)ae.push(e.readBool()),pe.push(e.readBool());if(u>0)for(oe=u;oe<8;oe++)e.readBits(2);for(oe=0;oe<u;oe++)ae[oe]&&(e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte(),e.readByte()),pe[oe]&&e.readByte();e.readUEG();var le=e.readUEG();le==3&&e.readBits(1);var Se=e.readUEG(),Ae=e.readUEG();e.readBool()&&(n+=e.readUEG(),o+=e.readUEG(),r+=e.readUEG(),s+=e.readUEG());var ue=e.readUEG(),ge=e.readUEG(),Re=e.readUEG();for(oe=e.readBool()?0:u;oe<=u;oe++)e.readUEG(),e.readUEG(),e.readUEG();if(e.readUEG(),e.readUEG(),e.readUEG(),e.readUEG(),e.readUEG(),e.readUEG(),e.readBool()&&e.readBool())for(var Le=0;Le<4;Le++)for(var xe=0;xe<(Le===3?2:6);xe++)if(e.readBool()){var De=Math.min(64,1<<4+(Le<<1));for(Le>1&&e.readSEG(),oe=0;oe<De;oe++)e.readSEG()}else e.readUEG();e.readBool(),e.readBool(),e.readBool()&&(e.readByte(),e.readUEG(),e.readUEG(),e.readBool());var Pe=e.readUEG(),Be=0;for(oe=0;oe<Pe;oe++){var Oe=!1;if(oe!==0&&(Oe=e.readBool()),Oe){oe===Pe&&e.readUEG(),e.readBool(),e.readUEG();for(var Ie=0,be=0;be<=Be;be++){var Ve=e.readBool(),Fe=!1;Ve||(Fe=e.readBool()),(Ve||Fe)&&Ie++}Be=Ie}else{var Xe=e.readUEG(),ct=e.readUEG();for(Be=Xe+ct,be=0;be<Xe;be++)e.readUEG(),e.readBool();for(be=0;be<ct;be++)e.readUEG(),e.readBool()}}if(e.readBool()){var Yt=e.readUEG();for(oe=0;oe<Yt;oe++){for(be=0;be<Re+4;be++)e.readBits(1);e.readBits(1)}}var ht=0,qe=1,Ke=1,lt=!1,et=1,tt=1;if(e.readBool(),e.readBool(),e.readBool()){if(e.readBool()){var We=e.readByte();We>0&&We<=16?(qe=[1,12,10,16,40,24,20,32,80,18,15,64,160,4,3,2][We-1],Ke=[1,11,11,11,33,11,11,11,33,11,11,33,99,3,2,1][We-1]):We===255&&(qe=e.readBits(16),Ke=e.readBits(16))}if(e.readBool()&&e.readBool(),e.readBool()&&(e.readBits(3),e.readBool(),e.readBool()&&(e.readByte(),e.readByte(),e.readByte())),e.readBool()&&(e.readUEG(),e.readUEG()),e.readBool(),e.readBool(),e.readBool(),e.readBool()&&(e.readUEG(),e.readUEG(),e.readUEG(),e.readUEG()),e.readBool()&&(et=e.readBits(32),tt=e.readBits(32),e.readBool()&&e.readUEG(),e.readBool())){var it=!1,at=!1,Qe=!1;for(it=e.readBool(),at=e.readBool(),(it||at)&&((Qe=e.readBool())&&(e.readByte(),e.readBits(5),e.readBool(),e.readBits(5)),e.readBits(4),e.readBits(4),Qe&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5)),oe=0;oe<=u;oe++){var ut=e.readBool();lt=ut;var ft=!0,nt=1;ut||(ft=e.readBool());var pt=!1;if(ft?e.readUEG():pt=e.readBool(),pt||(nt=e.readUEG()+1),it){for(be=0;be<nt;be++)e.readUEG(),e.readUEG(),Qe&&(e.readUEG(),e.readUEG());e.readBool()}if(at){for(be=0;be<nt;be++)e.readUEG(),e.readUEG(),Qe&&(e.readUEG(),e.readUEG());e.readBool()}}}e.readBool()&&(e.readBool(),e.readBool(),e.readBool(),ht=e.readUEG(),e.readUEG(),e.readUEG(),e.readUEG(),e.readUEG())}e.readBool();var Xt="hvc1.".concat(A,".1.L").concat($,".B0"),mt=Se-(n+o)*(le===1||le===2?2:1),gt=Ae-(r+s)*(le===1?2:1),yt=1;return qe!==1&&Ke!==1&&(yt=qe/Ke),e.destroy(),e=null,{codec_mimetype:Xt,profile_string:a.getProfileString(A),level_string:a.getLevelString($),profile_idc:A,bit_depth:ue+8,ref_frames:1,chroma_format:le,chroma_format_string:a.getChromaFormatString(le),general_level_idc:$,general_profile_space:h,general_tier_flag:m,general_profile_idc:A,general_profile_compatibility_flags_1:y,general_profile_compatibility_flags_2:R,general_profile_compatibility_flags_3:I,general_profile_compatibility_flags_4:H,general_constraint_indicator_flags_1:x,general_constraint_indicator_flags_2:ee,general_constraint_indicator_flags_3:Z,general_constraint_indicator_flags_4:Y,general_constraint_indicator_flags_5:re,general_constraint_indicator_flags_6:fe,min_spatial_segmentation_idc:ht,constant_frame_rate:0,chroma_format_idc:le,bit_depth_luma_minus8:ue,bit_depth_chroma_minus8:ge,frame_rate:{fixed:lt,fps:tt/et,fps_den:et,fps_num:tt},sar_ratio:{width:qe,height:Ke},codec_size:{width:mt,height:gt},present_size:{width:mt*yt,height:gt}}},a.parsePPS=function(i){var t=a._ebsp2rbsp(i),e=new U(t);e.readByte(),e.readByte(),e.readUEG(),e.readUEG(),e.readBool(),e.readBool(),e.readBits(3),e.readBool(),e.readBool(),e.readUEG(),e.readUEG(),e.readSEG(),e.readBool(),e.readBool(),e.readBool()&&e.readUEG(),e.readSEG(),e.readSEG(),e.readBool(),e.readBool(),e.readBool(),e.readBool();var n=e.readBool(),o=e.readBool(),r=1;return o&&n?r=0:o?r=3:n&&(r=2),{parallelismType:r}},a.getChromaFormatString=function(i){switch(i){case 0:return"4:0:0";case 1:return"4:2:0";case 2:return"4:2:2";case 3:return"4:4:4";default:return"Unknown"}},a.getProfileString=function(i){switch(i){case 1:return"Main";case 2:return"Main10";case 3:return"MainSP";case 4:return"Rext";case 9:return"SCC";default:return"Unknown"}},a.getLevelString=function(i){return(i/30).toFixed(1)},a}();function k(a){return a.byteOffset%2==0&&a.byteLength%2==0}function q(a){return a.byteOffset%4==0&&a.byteLength%4==0}function Q(a,i){for(var t=0;t<a.length;t++)if(a[t]!==i[t])return!1;return!0}var O=function(a,i){return a.byteLength===i.byteLength&&(q(a)&&q(i)?function(t,e){return Q(new Uint32Array(t.buffer,t.byteOffset,t.byteLength/4),new Uint32Array(e.buffer,e.byteOffset,e.byteLength/4))}(a,i):k(a)&&k(i)?function(t,e){return Q(new Uint16Array(t.buffer,t.byteOffset,t.byteLength/2),new Uint16Array(e.buffer,e.byteOffset,e.byteLength/2))}(a,i):function(t,e){return Q(t,e)}(a,i))},l=function(){return(l=Object.assign||function(a){for(var i,t=1,e=arguments.length;t<e;t++)for(var n in i=arguments[t])Object.prototype.hasOwnProperty.call(i,n)&&(a[n]=i[n]);return a}).apply(this,arguments)},_=function(){function a(){}return a.parseOBUs=function(i,t){for(var e=0;e<i.byteLength;){var n=e,o=(i[e],(120&i[e])>>3),r=(4&i[e])!=0,s=(2&i[e])!=0;i[e],e+=1,r&&(e+=1);var u=Number.POSITIVE_INFINITY;if(s){u=0;for(var h=0;;h++){var m=i[e++];if(u|=(127&m)<<7*h,(128&m)==0)break}}console.log(o),o===1?t=l(l({},a.parseSeuqneceHeader(i.subarray(e,e+u))),{sequence_header_data:i.subarray(n,e+u)}):(o==3&&t||o==6&&t)&&(t=a.parseOBUFrameHeader(i.subarray(e,e+u),0,0,t)),e+=u}return t},a.parseSeuqneceHeader=function(i){var t=new U(i),e=t.readBits(3),n=(t.readBool(),t.readBool()),o=!0,r=0,s=1,u=void 0,h=[];if(n)h.push({operating_point_idc:0,level:t.readBits(5),tier:0});else{if(t.readBool()){var m=t.readBits(32),A=t.readBits(32),y=t.readBool();if(y){for(var R=0;t.readBits(1)===0;)R+=1;R>=32||(1<<R)-1+t.readBits(R)}(r=A)/(s=m),o=y,t.readBool()&&(t.readBits(5),t.readBits(32),u=t.readBits(5),t.readBits(5))}for(var I=t.readBool(),H=t.readBits(5),x=0;x<=H;x++){var ee=t.readBits(12),Z=t.readBits(5),Y=Z>7?t.readBits(1):0;h.push({operating_point_idc:ee,level:Z,tier:Y}),I&&t.readBool()&&t.readBits(4)}}var re=h[0],fe=re.level,$=re.tier,ae=t.readBits(4),pe=t.readBits(4),oe=t.readBits(ae+1)+1,le=t.readBits(pe+1)+1,Se=!1;n||(Se=t.readBool()),Se&&(t.readBits(4),t.readBits(4)),t.readBool(),t.readBool(),t.readBool();var Ae=!1,ue=2,ge=2,Re=0;n||(t.readBool(),t.readBool(),t.readBool(),t.readBool(),(Ae=t.readBool())&&(t.readBool(),t.readBool()),(ue=t.readBool()?2:t.readBits(1))?ge=t.readBool()?2:t.readBits(1):ge=2,Ae?Re=t.readBits(3)+1:Re=0);var Le=t.readBool(),xe=(t.readBool(),t.readBool(),t.readBool()),De=8;e===2&&xe?De=t.readBool()?12:10:De=xe?10:8;var Pe=!1;e!==1&&(Pe=t.readBool()),t.readBool()&&(t.readBits(8),t.readBits(8),t.readBits(8));var Be=1,Oe=1;return Pe?(t.readBits(1),Be=1,Oe=1):(t.readBits(1),e==0?(Be=1,Oe=1):e==1?(Be=0,Oe=0):De==12?t.readBits(1)&&t.readBits(1):(Be=1,Oe=0),Be&&Oe&&t.readBits(2),t.readBits(1)),t.readBool(),t.destroy(),t=null,{codec_mimetype:"av01.".concat(e,".").concat(a.getLevelString(fe,$),".").concat(De.toString(10).padStart(2,"0")),level:fe,tier:$,level_string:a.getLevelString(fe,$),profile_idc:e,profile_string:"".concat(e),bit_depth:De,ref_frames:1,chroma_format:a.getChromaFormat(Pe,Be,Oe),chroma_format_string:a.getChromaFormatString(Pe,Be,Oe),sequence_header:{frame_id_numbers_present_flag:Se,additional_frame_id_length_minus_1:void 0,delta_frame_id_length_minus_2:void 0,reduced_still_picture_header:n,decoder_model_info_present_flag:!1,operating_points:h,buffer_removal_time_length_minus_1:u,equal_picture_interval:o,seq_force_screen_content_tools:ue,seq_force_integer_mv:ge,enable_order_hint:Ae,order_hint_bits:Re,enable_superres:Le,frame_width_bit:ae+1,frame_height_bit:pe+1,max_frame_width:oe,max_frame_height:le},keyframe:void 0,frame_rate:{fixed:o,fps:r/s,fps_den:s,fps_num:r}}},a.parseOBUFrameHeader=function(i,t,e,n){var o=n.sequence_header,r=new U(i),s=(o.max_frame_width,o.max_frame_height,0);o.frame_id_numbers_present_flag&&(s=o.additional_frame_id_length_minus_1+o.delta_frame_id_length_minus_2+3);var u=0,h=!0,m=!0,A=!1;if(!o.reduced_still_picture_header){if(r.readBool())return n;h=(u=r.readBits(2))===2||u===0,(m=r.readBool())&&o.decoder_model_info_present_flag&&o.equal_picture_interval,m&&r.readBool(),A=!!(u===3||u===0&&m)||r.readBool()}n.keyframe=h,r.readBool();var y=o.seq_force_screen_content_tools;o.seq_force_screen_content_tools===2&&(y=r.readBits(1)),y&&(o.seq_force_integer_mv,o.seq_force_integer_mv==2&&r.readBits(1)),o.frame_id_numbers_present_flag&&r.readBits(s);var R=!1;if(R=u==3||!o.reduced_still_picture_header&&r.readBool(),r.readBits(o.order_hint_bits),h||A||r.readBits(3),o.decoder_model_info_present_flag&&r.readBool()){for(var I=0;I<=o.operating_points_cnt_minus_1;I++)if(o.operating_points[I].decoder_model_present_for_this_op[I]){var H=o.operating_points[I].operating_point_idc;(H===0||H>>t&1&&H>>e+8&1)&&r.readBits(o.buffer_removal_time_length_minus_1+1)}}var x=255;if(u===3||u==0&&m||(x=r.readBits(8)),(h||x!==255)&&A&&o.enable_order_hint)for(var ee=0;ee<8;ee++)r.readBits(o.order_hint_bits);if(h){var Z=a.frameSizeAndRenderSize(r,R,o);n.codec_size={width:Z.FrameWidth,height:Z.FrameHeight},n.present_size={width:Z.RenderWidth,height:Z.RenderHeight},n.sar_ratio={width:Z.RenderWidth/Z.FrameWidth,height:Z.RenderHeight/Z.FrameHeight}}return r.destroy(),r=null,n},a.frameSizeAndRenderSize=function(i,t,e){var n=e.max_frame_width,o=e.max_frame_height;t&&(n=i.readBits(e.frame_width_bit)+1,o=i.readBits(e.frame_height_bit)+1);var r=!1;e.enable_superres&&(r=i.readBool());var s=8;r&&(s=i.readBits(3)+9);var u=n;n=Math.floor((8*u+s/2)/s);var h=u,m=o;if(i.readBool()){var A=i.readBits(16)+1,y=i.readBits(16)+1;h=i.readBits(A)+1,m=i.readBits(y)+1}return{UpscaledWidth:u,FrameWidth:n,FrameHeight:o,RenderWidth:h,RenderHeight:m}},a.getLevelString=function(i,t){return"".concat(i.toString(10).padStart(2,"0")).concat(t===0?"M":"H")},a.getChromaFormat=function(i,t,e){return i?0:t===0&&e===0?3:t===1&&e===0?2:t===1&&e===1?1:Number.NaN},a.getChromaFormatString=function(i,t,e){return i?"4:0:0":t===0&&e===0?"4:4:4":t===1&&e===0?"4:2:2":t===1&&e===1?"4:2:0":"Unknown"},a}(),d,f=function(){function a(i,t){this.TAG="FLVDemuxer",this._config=t,this._onError=null,this._onMediaInfo=null,this._onMetaDataArrived=null,this._onScriptDataArrived=null,this._onTrackMetadata=null,this._onDataAvailable=null,this._dataOffset=i.dataOffset,this._firstParse=!0,this._dispatch=!1,this._hasAudio=i.hasAudioTrack,this._hasVideo=i.hasVideoTrack,this._hasAudioFlagOverrided=!1,this._hasVideoFlagOverrided=!1,this._audioInitialMetadataDispatched=!1,this._videoInitialMetadataDispatched=!1,this._mediaInfo=new S.a,this._mediaInfo.hasAudio=this._hasAudio,this._mediaInfo.hasVideo=this._hasVideo,this._metadata=null,this._audioMetadata=null,this._videoMetadata=null,this._naluLengthSize=4,this._timestampBase=0,this._timescale=1e3,this._duration=0,this._durationOverrided=!1,this._referenceFrameRate={fixed:!0,fps:23.976,fps_num:23976,fps_den:1e3},this._flvSoundRateTable=[5500,11025,22050,44100,48e3],this._mpegSamplingRates=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],this._mpegAudioV10SampleRateTable=[44100,48e3,32e3,0],this._mpegAudioV20SampleRateTable=[22050,24e3,16e3,0],this._mpegAudioV25SampleRateTable=[11025,12e3,8e3,0],this._mpegAudioL1BitRateTable=[0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,-1],this._mpegAudioL2BitRateTable=[0,32,48,56,64,80,96,112,128,160,192,224,256,320,384,-1],this._mpegAudioL3BitRateTable=[0,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1],this._videoTrack={type:"video",id:1,sequenceNumber:0,samples:[],length:0},this._audioTrack={type:"audio",id:2,sequenceNumber:0,samples:[],length:0},this._littleEndian=function(){var e=new ArrayBuffer(2);return new DataView(e).setInt16(0,256,!0),new Int16Array(e)[0]===256}()}return a.prototype.destroy=function(){this._mediaInfo=null,this._metadata=null,this._audioMetadata=null,this._videoMetadata=null,this._videoTrack=null,this._audioTrack=null,this._onError=null,this._onMediaInfo=null,this._onMetaDataArrived=null,this._onScriptDataArrived=null,this._onTrackMetadata=null,this._onDataAvailable=null},a.probe=function(i){var t=new Uint8Array(i);if(t.byteLength<9)return{needMoreData:!0};var e={match:!1};if(t[0]!==70||t[1]!==76||t[2]!==86||t[3]!==1)return e;var n,o,r=(4&t[4])>>>2!=0,s=(1&t[4])!=0,u=(n=t)[o=5]<<24|n[o+1]<<16|n[o+2]<<8|n[o+3];return u<9?e:{match:!0,consumed:u,dataOffset:u,hasAudioTrack:r,hasVideoTrack:s}},a.prototype.bindDataSource=function(i){return i.onDataArrival=this.parseChunks.bind(this),this},Object.defineProperty(a.prototype,"onTrackMetadata",{get:function(){return this._onTrackMetadata},set:function(i){this._onTrackMetadata=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"onMediaInfo",{get:function(){return this._onMediaInfo},set:function(i){this._onMediaInfo=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"onMetaDataArrived",{get:function(){return this._onMetaDataArrived},set:function(i){this._onMetaDataArrived=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"onScriptDataArrived",{get:function(){return this._onScriptDataArrived},set:function(i){this._onScriptDataArrived=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"onError",{get:function(){return this._onError},set:function(i){this._onError=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"onDataAvailable",{get:function(){return this._onDataAvailable},set:function(i){this._onDataAvailable=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"timestampBase",{get:function(){return this._timestampBase},set:function(i){this._timestampBase=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"overridedDuration",{get:function(){return this._duration},set:function(i){this._durationOverrided=!0,this._duration=i,this._mediaInfo.duration=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"overridedHasAudio",{set:function(i){this._hasAudioFlagOverrided=!0,this._hasAudio=i,this._mediaInfo.hasAudio=i},enumerable:!1,configurable:!0}),Object.defineProperty(a.prototype,"overridedHasVideo",{set:function(i){this._hasVideoFlagOverrided=!0,this._hasVideo=i,this._mediaInfo.hasVideo=i},enumerable:!1,configurable:!0}),a.prototype.resetMediaInfo=function(){this._mediaInfo=new S.a},a.prototype._isInitialMetadataDispatched=function(){return this._hasAudio&&this._hasVideo?this._audioInitialMetadataDispatched&&this._videoInitialMetadataDispatched:this._hasAudio&&!this._hasVideo?this._audioInitialMetadataDispatched:!(this._hasAudio||!this._hasVideo)&&this._videoInitialMetadataDispatched},a.prototype.parseChunks=function(i,t){if(!(this._onError&&this._onMediaInfo&&this._onTrackMetadata&&this._onDataAvailable))throw new L.a("Flv: onError & onMediaInfo & onTrackMetadata & onDataAvailable callback must be specified");var e=0,n=this._littleEndian;if(t===0){if(!(i.byteLength>13))return 0;e=a.probe(i).dataOffset}for(this._firstParse&&(this._firstParse=!1,t+e!==this._dataOffset&&p.a.w(this.TAG,"First time parsing but chunk byteStart invalid!"),(o=new DataView(i,e)).getUint32(0,!n)!==0&&p.a.w(this.TAG,"PrevTagSize0 !== 0 !!!"),e+=4);e<i.byteLength;){this._dispatch=!0;var o=new DataView(i,e);if(e+11+4>i.byteLength)break;var r=o.getUint8(0),s=16777215&o.getUint32(0,!n);if(e+11+s+4>i.byteLength)break;if(r===8||r===9||r===18){var u=o.getUint8(4),h=o.getUint8(5),m=o.getUint8(6)|h<<8|u<<16|o.getUint8(7)<<24;16777215&o.getUint32(7,!n)&&p.a.w(this.TAG,"Meet tag which has StreamID != 0!");var A=e+11;switch(r){case 8:this._parseAudioData(i,A,s,m);break;case 9:this._parseVideoData(i,A,s,m,t+e);break;case 18:this._parseScriptData(i,A,s)}var y=o.getUint32(11+s,!n);y!==11+s&&p.a.w(this.TAG,"Invalid PrevTagSize ".concat(y)),e+=11+s+4}else p.a.w(this.TAG,"Unsupported tag type ".concat(r,", skipped")),e+=11+s+4}return this._isInitialMetadataDispatched()&&this._dispatch&&(this._audioTrack.length||this._videoTrack.length)&&this._onDataAvailable(this._audioTrack,this._videoTrack),e},a.prototype._parseScriptData=function(i,t,e){var n=w.parseScriptData(i,t,e);if(n.hasOwnProperty("onMetaData")){if(n.onMetaData==null||typeof n.onMetaData!="object")return void p.a.w(this.TAG,"Invalid onMetaData structure!");this._metadata&&p.a.w(this.TAG,"Found another onMetaData tag!"),this._metadata=n;var o=this._metadata.onMetaData;if(this._onMetaDataArrived&&this._onMetaDataArrived(Object.assign({},o)),typeof o.hasAudio=="boolean"&&this._hasAudioFlagOverrided===!1&&(this._hasAudio=o.hasAudio,this._mediaInfo.hasAudio=this._hasAudio),typeof o.hasVideo=="boolean"&&this._hasVideoFlagOverrided===!1&&(this._hasVideo=o.hasVideo,this._mediaInfo.hasVideo=this._hasVideo),typeof o.audiodatarate=="number"&&(this._mediaInfo.audioDataRate=o.audiodatarate),typeof o.videodatarate=="number"&&(this._mediaInfo.videoDataRate=o.videodatarate),typeof o.width=="number"&&(this._mediaInfo.width=o.width),typeof o.height=="number"&&(this._mediaInfo.height=o.height),typeof o.duration=="number"){if(!this._durationOverrided){var r=Math.floor(o.duration*this._timescale);this._duration=r,this._mediaInfo.duration=r}}else this._mediaInfo.duration=0;if(typeof o.framerate=="number"){var s=Math.floor(1e3*o.framerate);if(s>0){var u=s/1e3;this._referenceFrameRate.fixed=!0,this._referenceFrameRate.fps=u,this._referenceFrameRate.fps_num=s,this._referenceFrameRate.fps_den=1e3,this._mediaIn